16402642201 has 16 divisors (see below), whose sum is σ = 18050531328. Its totient is φ = 14781085200.

The previous prime is 16402642181. The next prime is 16402642231. The reversal of 16402642201 is 10224620461.

It is a cyclic number.

It is not a de Polignac number, because 16402642201 - 2⁵ = 16402642169 is a prime.

It is a super-4 number, since 4×16402642201⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16402642201.

It is not an unprimeable number, because it can be changed into a prime (16402642231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1815786 + ... + 1824796.

It is an arithmetic number, because the mean of its divisors is an integer number (1128158208).

Almost surely, 2^16402642201 is an apocalyptic number.

16402642201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16402642201 is a deficient number, since it is larger than the sum of its proper divisors (1647889127).

16402642201 is a wasteful number, since it uses less digits than its factorization.

16402642201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 16402642201 in words is "sixteen billion, four hundred two million, six hundred forty-two thousand, two hundred one".